ALKALOIDS OF PICEA-BREWERIANA

Alkaloids found in Picea breweriana include hygrine, hygroline, N-meth ylsedridine and N-methylpelletierine. This represents the first isolat ion of these alkaloids from the Pinaceae. Euphococcinine, an alkaloid previously found in Picea and Pinus species, is also present. The pres ence of alkaloids characteristic of two different biosynthetic pathway s in P. breweriana highlights the apparent uniqueness of this species.